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| author | Christoph Lameter <clameter@sgi.com> | 2006-09-25 23:31:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-26 08:48:51 -0700 |
| commit | 006d22d9bbb7e66279ba5cc4556b54eeaf8fd556 (patch) | |
| tree | 5af5a6676af234db8836bb1e3ef71e6cf8ccb0a9 /mm/page_alloc.c | |
| parent | 46a82b2d5591335277ed2930611f6acb4ce654ed (diff) | |
| download | lwn-006d22d9bbb7e66279ba5cc4556b54eeaf8fd556.tar.gz lwn-006d22d9bbb7e66279ba5cc4556b54eeaf8fd556.zip | |
[PATCH] Optimize free_one_page
Free one_page currently adds the page to a fake list and calls
free_page_bulk. Fee_page_bulk takes it off again and then calles
__free_one_page.
Make free_one_page go directly to __free_one_page. Saves list on / off and
a temporary list in free_one_page for higher ordered pages.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index e8a71657ac4a..cc6483047567 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -448,9 +448,11 @@ static void free_pages_bulk(struct zone *zone, int count, static void free_one_page(struct zone *zone, struct page *page, int order) { - LIST_HEAD(list); - list_add(&page->lru, &list); - free_pages_bulk(zone, 1, &list, order); + spin_lock(&zone->lock); + zone->all_unreclaimable = 0; + zone->pages_scanned = 0; + __free_one_page(page, zone ,order); + spin_unlock(&zone->lock); } static void __free_pages_ok(struct page *page, unsigned int order) |